| Literature DB >> 1778560 |
P D Cleary1, S Edgman-Levitan, M Roberts, T W Moloney, W McMullen, J D Walker, T L Delbanco.
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Year: 1991 PMID: 1778560 DOI: 10.1377/hlthaff.10.4.254
Source DB: PubMed Journal: Health Aff (Millwood) ISSN: 0278-2715 Impact factor: 6.301